To celebrate 2013, we invited some YouTubers to star in a mashup of popular moments this year. Can you spot all the references? WATCH THE TOP VIDEOS OF 2013: http://yt.be/rewind Can you name all the YouTube stars in the video? Did you get all the references to the top videos and memes of the year?

The reaction from 13-year-old Derrick Jenkins when he sees his mom first the first time in eight months is simply priceless. Lt. Col. Cotina Jenkins-Sellers just finished her deployment in Kuwait, and snuck up behind her son as he was at the free thrown line.

On February 10, 2014 a group of students from the UCLA school of Law gathered together to raise awareness of the disturbing emotional toll placed upon students of color due to their alarmingly low representation within the student body.

A program called Harmony gives free instruments and training to kids who would otherwise be unable to afford either. The program has brought in professional musicians to mentor the kids, who practice vigorously every day.

U.S. Air Force Capt. Nicolas Aquino is a first-generation American that joined the United States Air Force as a way to give back to a country that opened its arms to his parents. He details his parents struggle and their journey to the United States, and explains what freedom and service mean to him.

Jimmy Kimmel Live wrote: Three random guys had an impromptu jam session outside of a supermarket in Texas and the video of it went viral in just a few days. We brought them on to perform their song with help from Jimmy, Guillermo, Dicky, Cleto and the Cletones, a gospel choir, and surprise guests Trey Songz, Juicy J and Aloe Blacc.

What happens when everything you thought was real changes over lunch? This week we talk to Marqus Cole, and hear his story about how our identity is very often deeply connected with our relationship with our dad. Filmmaker Corbyn Tyson explores what it means to be a good dad.

Magee Carey D. Andrew-Jaja, MD, FACOG of Magee has delivered thousands and thousands of babies, but he welcomes each of them into the world, with a beautiful song! From "Happy Birthday," to "It's a Wonderful World," he inherited the tradition from his mentor and he has even delivered a father and son.

Byon Artrell McCullough, 28, of Florence, South Carolina became homeless after serving time in prison. With no job and no family, he decided to support himself by sharing his beautiful voice with strangers.

This video is an ASL interpretation of Pharrell Williams's "Happy." An expression of music in ASL composed by Rosa Lee Timm and Azora Telford. The video was produced by a team of Deaf campers & staff from Deaf Film Camp 2014 at Camp Mark Seven. This video is displayed for entertainment and educational purposes only.

In his biweekly column, New York Times writer Charles M. Blow seeks clarity out of complicated news events. The same search for transparency is seen in his new memoir, "Fire Shut Up in My Bones," which chronicles a childhood punctuated by sexual abuse and lifetime spent navigating masculinity and sexuality.

As a young African-American man, Justin Edmund, 24, feels isolated, one of the few people who looks like him in the company where he works and in the Mission District neighborhood of San Francisco where he lives.